The Upgraded MMDVM Hotspot 4.2 is a high-performance digital voice modem designed for amateur radio operators who require stability, flexibility, and ease of use.
Equipped with a high-quality TCXO, this hotspot delivers stable frequency accuracy and low BER, ensuring reliable DMR, D-STAR, and YSF digital voice communication. The device supports both UHF and VHF, making it compatible with a wide range of radios.
This hotspot includes a Raspberry Pi Zero W and Ethernet expansion board, offering both 2.4GHz WiFi and wired Ethernet connectivity. Whether you prefer wireless convenience or wired stability, setup is fast and simple.
A 16GB Class 10 TF card is included and preloaded with the latest Pi-Star 4.2 software, with most configurations already completed—perfect for beginners and advanced users alike.
Powered by a standard 5V USB port, the compact aluminum alloy enclosure provides excellent durability, heat dissipation, and portability. All designs follow the open-source MMDVM project, ensuring transparency and community support.

Package Includes
1 × MMDVM Hotspot with Ethernet Port Expansion Board
1 × 16GB TF Card (Pi-Star 4.2 Preloaded, Class 10 High Speed)
1 × Aluminum Alloy Shell
1 × UHF 433MHz Antenna
1 × SMA 90° Connector
1 × USB Power Cable
1 × User Manual